FARMERS^ REGISTER 



497 



heavily; and thai was the more readily pro- 

 duced, (when the marling was alike,) in pro- 

 portion to the poverty of the land and the seve- 

 rity of ils tillage. The disease of " inari-burn- 

 ing" prevented or removed by giving vegeta- 

 ble matter in proportion to the excess of marl. 

 A large space has been thus diseased ; but by 

 rest, and vegetable matter, the injury has been 

 almost every where cured, or prevented. 

 ISth. — Putrescent manures believed to be more 

 efficacious at first, and certainly more lasting in 

 effect, and far more profitable, on marled land. 

 Gypsunj, and also "green-sand" generally 

 having more or less effect on clover after marl- 

 ing, on acid land, and always quhe inoperative 

 there before marling. 



19th. — Certainly not exceeding 12 bushels ; I in- 

 cline to think not more than 10. All cleared 

 since 1818 was marled before being cultivated. 



20///. — From 25 to 27 bushels per acre. The 

 largest crop yet made vvas in 1839, amounting 

 to 4500 bushels. Of this crop one entire field of 

 112 acres which had been all originally of poor 

 and mean soil, and all, both new and old land, 

 quite poor when mailed, was supposed to have 

 averaged 3J bushels to the acre. 



21s/. — The general average of my six first years' 

 crops, immediately preceding marling, was 637 

 bushels. The average product per acre, in the 

 first ihree years, was 5i bushels, en the richest 

 half of the land — wheal not being sown on the 

 poorest half. The greatest crop made before 

 marling was 896 bushels. The greatest since, 

 in 1831, was 2500. This year, (a very short 

 crop here and generally) the quantity made vvas 

 nearly 2000 bushels. Allowing f^jr the recur- 

 rence of all the usual nieasure of diseases and 

 disasters to which this latterly very precarious 

 crop has been subject, the actual average an- 

 nual product of wheat is estimated at 1800 

 bushels. This is believed to be greatly below 

 the productive power of the several shifts. The 

 causes of usual and greatly reduced product are 

 principally the ravages of insects. 



22(/. — I suppose SS8 ger acre, on all the land each 

 year under marketable crops ; and for the quan- 

 tity of land usually under tillage, about S3200.* 



23d. — No answer requisite, liom this source. 



Concluding General Remarks, on the Queries and 

 jiaswers. 



It will scarcely be necessary, for the benefit of 

 observant readers, and might be deemed obtrusive, 

 to sum up and compare the evidence presented in 

 all the foregoing answers. Therefore, without no- 

 ticing any which present opposing or disputed 

 opinions or facts, it will merely be here staled that 



* This is estimated on the supposition of tfie in- 

 crease of corn per acre being worth $10, of wheat $6, 

 and that rather more than half the land is under these 

 crops; or, if more, that this product at least is obtained. 

 Their offal and the clover are not estimated as market 

 crops, but considered merely as sources of manure and 

 improvement. All the long continued efi'ects of pu- 

 trescent manures, and all the benefits of clover as ma- 

 nure, are counted as due to marling, as there would be 

 neither of these benefits existing without having marled . 



Vor,. VIII.— 63 



all the witnesses concur in maintaiuing the follow- 

 ing positions : 



1st. That every application of marl made by 

 them has produced immediate and considerable 

 benefit; and that the benefit has afterwards in- 

 creased with the lapse of time, under all ordinary 

 circumstances, and any cultivation which vvas not 

 very injudicious, and maniliistly destructive. 



2J. That the marling operations of every indi- 

 vidual named, on his own testimony, (and judg- 

 ing from their continuation and extent, still more 

 than from opinions stated of particular results,) 

 have been highly profitable. 



3d. That marl, in all this district at least, has 

 been found to be a certain and great enrichcr of 

 naturally inferior and poor soils. 



4lh. That vegetable and other putrescent ma- 

 nures are much more serviceable and profitable 

 on marled lands. 



5ih. That the beneficial effects of marling are 

 not transient, but permanent; and no future 

 abatement of the early improvement is counted 

 on, or supposed possible, under a proper system 

 of tillage. 



6th. That a large increase of annual income, 

 and consequently of general value of the land, 

 has occurred in ever}' case of extensive marling. 



7th. That experience and observation, so far 

 as extended, serve to sustain, and in no case to 

 contradict, the more detailed views, and nume- 

 rous statements of facts, or of opinions, which are 

 referred to and embraced in the concluding query. 



From the Carolina Planter. 

 BOTS, AKIJ THEIR CURE. 



In the History of the Horse, pp. 159-60, this 

 disease is treated with apparent disregard, and 

 the compilers of the work give only the experi- 

 ence and knowledge of Mr. Bracy Clark on ihis 

 subject. That he knew nothing of the danger 

 of bois, (the larvte of the ffistrus equi,) is very 

 evident, and his profound ignorance could not have 

 come within the knowledge of the compilers, else 

 they would not have admitted his opinion in a 

 work of such general circulation, and in other 

 mailers relative to the horse, of such utility as 

 the work above quoted. He advances the idea 

 that the gad Wy merely takes advantage of the in- 

 ternal structure of the horse \o perpetuate its spe- 

 cies — that it is not the enemy of the horse, and 

 therefore not injurious — and that in due course of 

 nature it will free itself from ils prison birth-place. 

 The first assertion I admit. The object of this 

 article is to expose the fallacy of the second — and 

 with him I agree in the latter, provided the con- 

 stitution of the animal is sufficiently strong to 

 bear up against the ravages of ihis truly carnivo- 

 rous destroyer. Yet I shall attempt, and I hope 

 saiislactorily, to show that many valuable anim.als 

 are annually sacrificed lo ignorance and the too 

 frequent consultation and credence given to ihis 

 book on this subject. J\lr. Clark's doctrine is, 

 that the hots are liislened to the cu'icular and in- 

 sensible coat of the stomach, and that therefore 

 they are unapproachable by medicines. Actual 

 experience and observations have shown to me, 

 that in the early stages of the life of the larvee 

 they leed on the delicate mucus of the stomach 

 — yet I have examined horses whose stomachs 

 were perforated not only through the cuticular, 



